Oh, good! We found a better use of 3D printing technology beyond desk figurines of Minecraft Creepers and cool mechanical wonders.
The tl;dr is that a 22 year old woman with a rare bone disorder had a surgery in which her actual skull was transplanted and replaced with a 3D printed skull implant made with plastic resin. They chose 3D printing for a better more precise fit.
See the full article here.